WATCH: JUSTIN BIEBER Gives An Impromptu Performance At A Bar!

Fans usually pay a lot of good money just to see Justin Bieber perform live but for some bar guests in Toronto, they got to see him sing for free.

The young popstar was at the Fifth Pubhouse recently to watch a Toronto Raptors game when he saw a piano and immediately asked the management if he could play. When he got the go signal, Bieber turned the night into an impromptu jam session.

Showcasing his piano skills, the Ontario native serenaded the crowd with his hit song "Sorry" as well as covers of The Beatles' "Let It Be," One Republic's "Apologize" and a few bars of Beethoven's "Für Elise." Watch the videos below!